Miscellaneous civil repair including external painting works to Telephone Bhawan, Balasore.

Sub-Head : Dismantling and Demolishing

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Dismantling C.I. or asbestos rain water pipe with fittings and clamps including stacking the material within 50 metres lead :

100 mm dia pipe

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Sub-Head : Concrete Work

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor, etc., up to floor five level, excluding the cost of centering, shuttering and finishing :

1:2:4 (1 Cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Sub-Head : Wood and P.V.C. Work

Providing and fixing oxidised M.S. casement stays (straight peg type) with necessary screws etc. complete (Copper oxidised as per IS 1378)

250 mm weighing not less than 280 grams

Sub-Head : Aluminium Work

Providing and fixing aluminium work for doors, windows, ventilators and partitions with extruded built up standard tubular sections/appropriate Z sections and other sections of approved make conforming to IS: 733 and IS: 1285, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber/neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, Aluminium snap beading for glazing / paneling, C.P. brass/ stainless steel screws, all complete as per architectural drawings and the directions of Engineer-in-charge. (Glazing, paneling and dash fasteners to be paid for separately) :

For fixed portion

Powder coated aluminium (minimum thickness of powder coating 50 micron)

Providing and fixing glazing in aluminium door, window, ventilator shutters and partitions etc. with EPDM rubber / neoprene gasket etc. complete as per the architectural drawings and the directions of engineer-in-charge . (Cost of aluminium snap beading shall be paid in basic item):

With float glass panes of 5 mm thickness (weight not less than 12.50 kg/sqm)

Sub-Head : Roofing

Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (i) Single socketed pipes.

(i)Single socketed pipes.

110 mm diameter

Providing and fixing on wall face unplasticised - PVC moulded fittings/accessories for unplasticised Rigid PVC rain water pipes conforming to IS 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion.

Single pushfit Coupler :

Single tee with door

110 mm bend

Providing and fixing unplasticised -PVC pipe clips of approved design to unplasticised - PVC rain water pipes by means of 50x50x50 mm hard wood plugs, screwed with M.S. screws of required length, including cutting brick work and fixing in cement mortar 1:4 (1 cement : 4 coarse sand) and making good the wall etc. complete.

Sub-Head : Water Proofing

Grading roof for water proofing treatment with

Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size)

Sub-Head : Finishing

12 mm cement plaster of mix :

1:6 (1 cement: 6 coarse sand)

15 mm cement plaster on rough side of single or half brick wall of mix :

1:6 (1 cement: 6 coarse sand)

Finishing walls with Acrylic Smooth exterior paint of required shade :

New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm)

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade:

Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture.

Lettering with synthetic enamel paint of approved brand and manufacture

Removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :

One or more coats on old work.

Finishing walls with Acrylic Smooth exterior paint of required shade :

Old work (Two or more coat applied @ 1.67 ltr/ 10 sqm) on existing cement paint surface).

Sub-Head : Repairs to Buildings

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq.meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge.

With cement mortar 1:4 (1cement: 4 coarse sand).

Renewing glass panes, with putty and nails wherever necessary including racking out the old putty:

Float glass panes of nominal thickness 4 mm (weight not less than 10kg/sqm).

Dismantling 15 to 40 mm dia G.I. pipe including stacking of dismantled pipes (within 50 metres lead) as per direction of Engineerin-Charge.

(a) Internal Work- Exposed on wall

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ litre and viscocity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc, and preparing the surface complete.

The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 650/ 450N/ 5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane :

3 mm thick

Sub-Head : Water Supply

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. : Internal work - Exposed on wall

20 mm nominal outer dia. Pipes.

25 mm nominal outer dia .Pipes.

32 mm nominal outer dia. Pipes.

40 mm nominal outer dia. Pipes.

Sub-Head : NEW TECHNOLOGIES AND MATERIALS

Chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge

50 mm average thickness

Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect.

Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make.

Providing, mixing and applying SBR polymer (of approved make @ minimum 2% by wt. of cement used) modified plain/reinforced cement concrete for structural members having minimum characteristic compressive strength [with ordinary portland cement, coarse sand and graded stone aggregate of 10mm maximum size in proportion as per design criteria] with specified average thickness.

Note: Rates shall be for finished surface area of concrete and shall include the cost of labour, concrete and appropriate approved Super- Plasticiser for rendering concrete as flowable and SBR polymer but shall exclude cost of reinforcement, bond coat, Shear Keys, centering and shuttering, strutting, propping etc.

(Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding/ tapping with a blunt metal instrument)

50mm thick in Grade M 25 with cement content not less than 330 kg per cum

75mm thick in Grade M 25 with cement content not less than 330 kg per cum

Sub-Head : MARKET RATED ITEMS

Deduct for taking into posession the unserviceable dismantled materials including carriage:

Dismantled damaged Gun metal gate valve 25mm to 40 mm.

Dismantled damaged CI / GI pipes.

Engaging labour for cleaning of open surface drains of any size, roof, terrace, chajjas at any floor at any height including all T & P, removal of debrishes, sullage and disposal all complete as per direction of Engineer-in-charge.

Providing and fixing CPVC Ball valve approved quality with handle in CPVC pipe line etc complete as per direction of Engineer-in-charge:

25 mm diameter

32 mm diameter

40 mm diameter

Providing and fixing CPVC Union in CPVC pipe line including cutting the pipe etc complete as per direction of Engineer-in-charge

25 mm diameter

32 mm diameter

40 mm diameter

Extra for providing and mixing liquid water proofing compound of DR FIXIT PIDIPROOF LW+ or equivalent in cement concrete / plaster work in doses by weight of cement as per manufacturer’s specification.

Providing and fixing M.S. casement window fastener with necessary screws etc. complete.

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